Live › vulnerability › CVE-2026-20545
A missing bounds check in the modem firmware allows an out-of-bounds write. A device that connects to an attacker-controlled rogue base station can have its privileges escalated remotely, with no user interaction and no extra execution privileges needed.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 03:31 UTC. All times on this page are UTC.
Devices with the affected modem firmware that connect to cellular networks are potentially exposed, since the attack works by a rogue base station. The sources do not name specific devices or chipset versions, so the exact affected set is unknown. Systems that never use the cellular modem are not affected.
No product ranges from the sources yet.
Unknown from the sources.
Unknown from the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01879158 / MOLY01774038; Issue ID: MSV-9811.
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